book stores are idiots if they think trades are better. bigger books take up more shelf space, means fewer copies, means fewer sales. even if they do charge more for a TPB.
That's not true. They're not just making this up. The reason bookstores prefer trades is because it's already been proven
that trades make them more profit. To you, this is merely an abstract matter for conversation and speculation. To them, it's their daily business, and their decisions about it are based on concrete evidence and direct experience.